CN102148413B - Temperature controller of vehicle-mounted battery pack - Google Patents
Temperature controller of vehicle-mounted battery pack Download PDFInfo
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- CN102148413B CN102148413B CN2011100546430A CN201110054643A CN102148413B CN 102148413 B CN102148413 B CN 102148413B CN 2011100546430 A CN2011100546430 A CN 2011100546430A CN 201110054643 A CN201110054643 A CN 201110054643A CN 102148413 B CN102148413 B CN 102148413B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The invention relates to a temperature controller of a vehicle-mounted battery pack which comprises a battery compartment, wherein a housing of the battery compartment comprises a heat insulation layer, heat radiation channels are arranged between batteries, an air inlet duct and an air outlet duct are arranged at two ends of the battery compartment, the air inlet duct is connected with an air filter, the air outlet duct is connected with a temperature adjustment and control module, an air duct switching device and a silencer, an air return duct is arranged between the air duct switching device and the air inlet duct, a battery manager is arranged in the battery compartment, temperature sensors are arranged in the air inlet duct, the air outlet duct and the air duct switching device respectively, a battery detector and the temperature sensors are connected to an electronic detection and control circuit, the electronic detection and control circuit is further connected with an external temperature switch, the air duct switching device and the temperature adjustment and control module, and an air door is arranged in the air duct switching device. The temperature controller of the vehicle-mounted battery pack can be applied on pure electric vehicles and hybrid electric vehicles, has great compatibility and can ensure normal using temperature of the battery pack under a complex environment and ensure that sufficient power is provided for the battery pack to the maximum extent.
Description
Technical field
The present invention relates to a kind of automatic control system, particularly a kind of for temperature isolation, adjusting, control appliance-temperature controller of vehicle-mounted battery pack on the Vehicular accumulator cell group on motor vehicle
.
Background technology
Generally, the assembling mode of Vehicular accumulator cell group is the outer case of a kind of Vehicular accumulator cell group of design
-Vehicular accumulator cell storehouse, in the Vehicular accumulator cell storehouse of packing into after the Vehicular accumulator cell group is combined as requested, the Vehicular accumulator cell group after vanning is arranged on vehicle body by the car load requirement.Because the environment for use of vehicle is widely different, the environment for use temperature contrast of the Vehicular accumulator cell group that escort vehicle is used is also very large, from-40 ℃ to+45 ℃, some particular surroundings can reach+65 ℃.And Vehicular accumulator cell group novel, high-energy-density has the temperature range requirement.Take lithium manganate battery as example, and the temperature range that the best of lithium manganate battery is used is 15 ℃-35 ℃, and lower than 15 ℃ or during higher than 35 ℃, the performance of battery all can descend, and this all requires the bulk temperature of Vehicular accumulator cell group to control within limits.
At present, the temperature regulation mechanism of the Vehicular accumulator cell group on new energy field-motor vehicle is more single, mainly adopts air cooling way, to Vehicular accumulator cell group forced ventilation.The forced ventilation mode can only be just effective during higher than ambient temperature in the temperature of Vehicular accumulator cell group, and can only do cooling and regulate.When ambient temperature during higher than the temperature of Vehicular accumulator cell group, or ambient temperature is too low while needing to promote the temperature of vehicle-mounted batteries, and the forced ventilation mode all can't solve.
Summary of the invention
For the temperature characterisitic requirement of Vehicular accumulator cell group, the invention provides temperature isolation, adjusting, control appliance---the temperature controller of vehicle-mounted battery pack of a set of complete Vehicular accumulator cell group.
Temperature controller of vehicle-mounted battery pack of the present invention, must carry out comprehensive Design in conjunction with the service condition of Vehicular accumulator cell and the dynamic structure of car load, comprise battery compartment, air channel, air cleaner and blower fan, wherein: described battery compartment shell is provided with heat-insulation layer, several cells are equipped with in inside, be provided with heat dissipation channel between every two batteries, the battery compartment two ends are provided with air inlet duct and exhaust passage, air inlet duct connects air cleaner, exhaust passage connects temperature and adjusts control module, temperature is adjusted control module and is externally connected with the air channel switch, the air channel switch is externally connected with muffler, be connected to air-return duct between air channel switch and air inlet duct, be provided with battery manager in battery compartment, at air inlet duct, difference set temperature transducer in exhaust passage and air channel switch, battery detector and temperature sensor are connected to the electronic detection and control circuit, the electronic detection and control circuit also connects the external temperature switch for detection of ambient temperature, the output of electronic detection and control circuit is connected respectively to the air channel switch and temperature is adjusted control module, be provided with air door in the switch of air channel, can between air-return duct and muffler two-way, switch.
Described external temperature switch comprises 35 ℃ of temperature switches, 5 ℃ of temperature switches, 40 ℃ of temperature switches and 15 ℃ of temperature switches.
Described temperature is adjusted control module and is comprised heat exchanger, electric heater, circulating fan, refrigeration interchanger, wherein: heat exchanger and electric heater are combined into bringing-up section, circulating fan and refrigeration interchanger are combined into refrigerating section, be provided with the second air channel switch between two ends, the branch road of the second air channel switch connects air-return duct, and the air door of the second air channel switch switches between bringing-up section and air-return duct.
Described electric heater comprise ceramic wafer, stereotype for heating ,+85 ℃ of temperature limit switch, power input, ceramic wafer and stereotype are along the stacked setting of air gateway direction, every layer of ceramic wafer has several fritter ceramic heating plates, leave each other gap, + 85 ℃ of temperature limit switch are at least established one, and power input connects ceramic wafer by+85 ℃ of temperature limit switch.
Described heat exchanger comprises fluid pipeline, radiating fin, Liquid valve, liquid outlet, radiating fin is along the stacked setting of air ports direction, fluid pipeline is vertically installed in radiating fin, front end is provided with Liquid valve, rear end is provided with liquid outlet, and Liquid valve and liquid outlet be the connecting automobile engine cooling system respectively.
Described refrigeration interchanger comprises compressor, condenser, pressure-reducing valve, evaporator, and compressor, condenser, pressure-reducing valve and evaporator are concatenated into successively to seal to close and change, and evaporator is vertically set between refrigeration interchanger air ports.
Described refrigeration interchanger comprises heater, the first cooler, the second cooler 803, refrigerator 804, heater, the second cooler and refrigerator connect into the first closed loop, heater, the first cooler and refrigeration interchanger connect into the second closed loop, and the first cooler is vertically set between refrigeration interchanger air ports.
Described electronic detection and control circuit is provided with CAN bus and the defeated people of direct current 12V.
Described electronic detection and control circuit is connected with several limit switches, and limit switch is arranged on two final positions of air door.
Temperature controller of vehicle-mounted battery pack of the present invention is as follows to the temperature-controlled process of batteries:
1) detect external temperature and battery temperature;
2) temperature range according to battery pack requires (temperature range of the best use of lithium manganate battery is 15 ℃-35 ℃), in conjunction with natural environment range of temperature (40 ℃ to+45 ℃), ambient temperature lower than 35 ℃ of conditions under, temperature in the Vehicular accumulator cell group rises to 40 ℃, start circulating fan, the air channel switch is in muffler and exhaust passage connection status, adopts the forced ventilation mode to lower the temperature to the Vehicular accumulator cell group; When dropping in the scope of limiting the quantity of (15 ℃-35 ℃), the bulk temperature of on-vehicle battery group stops cooling process;
3) when ambient temperature during higher than 35 ℃, the Vehicular accumulator cell group be need to lower the temperature the time, circulating fan and refrigeration interchanger enter operating state, the second air channel switch is in exhaust passage and air-return duct connection status, recurrent state in stroke; Refrigeration interchanger output cryogenic energy cooling-air, the cooling state of battery compartment in refrigeration modes stops cooling process when the bulk temperature of on-vehicle battery group drops in the scope of limiting the quantity of;
4) in ambient temperature during lower than 5 ℃ of conditions, temperature is lower than 15 ℃, start heating system and circulation motor, the air channel switch is in air outlet and air-return duct connection status, recurrent state in forming, enter electric heater and liquid heater from the gas of sucking-off in the Vehicular accumulator cell storehouse after the circulating fan pressurization, through electric heater or liquid heater heating, become thermal current, thermal current is heated to the Vehicular accumulator cell group in interior circulation air path returns to the Vehicular accumulator cell storehouse; When rising in the scope of limiting the quantity of (15 ℃-35 ℃), the bulk temperature of on-vehicle battery group stops heating schedule.Pure electric vehicle adopts Electric heating, and mixed motor-car adopts heating liquid mode (also after available electric heating system Fast Heating, forwarding the heating liquid mode to).
Be provided with the startup auto-lock function in described temperature-controlled process, the temperature controller of vehicle-mounted battery pack condition of work is car to be detected
Function on could start while controlling the power supply input, and dilly is that direct current 12V, oversize vehicle are direct current 24V.
Be provided with multiple spot in described temperature-controlled process and directly survey mode, plural 35 ℃ of temperature detect switch (TDS)s are for the ambient temperature upper limit
Monitoring, plural 5 ℃ of temperature detect switch (TDS)s are for the monitoring of ambient temperature lower limit.
Be provided with interlock function in described temperature-controlled process as follows:
When 1) ambient temperature outside the Vehicular accumulator cell storehouse is higher than 35 ℃, refrigeration interchanger place can enter operating state, cuts off the condition of work (interlocking) of heater simultaneously;
When 2) ambient temperature outside the Vehicular accumulator cell storehouse is lower than 5 ℃, heater can enter operating state, cuts off the condition of work (interlocking) of refrigeration interchanger simultaneously;
When 3) ambient temperature outside the Vehicular accumulator cell storehouse is within the scope of limiting the quantity of (15 ℃-35 ℃), the condition of work of heater and refrigeration interchanger all is cut off.
Temperature controller of vehicle-mounted battery pack of the present invention, can be applied on pure electric automobile and hybrid-electric car, there is good compatibility, can guarantee to need the normal serviceability temperature of battery pack under complex environment, guarantee to need battery pack that enough power is provided to greatest extent.
The accompanying drawing explanation
The ventilation hole structure schematic diagram of Fig. 1 Vehicular accumulator cell group;
Fig. 2 is the schematic diagram of temperature controller of vehicle-mounted battery pack of the present invention
;
Fig. 3 is the drive circuit of the air door drive motors of air channel switch;
Fig. 4 is outer circulation passage pie graph;
Fig. 5 is the inner cycle channel pie graph;
Fig. 6 is electronic detection and control the electric circuit constitute figure;
Fig. 7 is ceramic resistor heater structure figure;
Fig. 8 is the liquid heater structure chart;
Fig. 9 is the compression-type refrigerating system structure chart;
Figure 10 is the absorption system structure chart.
Embodiment
below in conjunction with embodiment coupletemperature controller of vehicle-mounted battery pack of the present invention and temperature-controlled process are done detailed explanation.
Fig. 2 is the schematic diagram of temperature controller of vehicle-mounted battery pack of the present invention.
Temperature controller of vehicle-mounted battery pack of the present invention, must carry out comprehensive Design in conjunction with the service condition of Vehicular accumulator cell and the dynamic structure of car load, comprises battery compartment 9, air channel, air cleaner 13 and blower fan.
External temperature switch 20 comprises that 35 ℃ of temperature switch 20a, 5 ℃ of temperature switch 20b, 20c, 40 ℃ of temperature switch 20d and 15 ℃ of temperature switch 20e(are shown in Fig. 6).
Temperature is adjusted control module and is comprised heat exchanger 5, electric heater 6, circulating fan 7, refrigeration interchanger 8, wherein: heat exchanger 5 and electric heater 6 are combined into bringing-up section, circulating fan 7 and refrigeration interchanger 8 are combined into refrigerating section, be provided with the second air channel switch 2a between two sections, the air door 1a that the branch road of the second air channel switch 2a connects air-return duct 14, the second air channel switch 2a switches between bringing-up section and air-return duct 14.
Refrigeration interchanger 8 comprises that compressor 81, condenser 82, pressure-reducing valve 83 and evaporator 84(are shown in Fig. 9), compressor 81, condenser 82, pressure-reducing valve 83 and evaporator 84 are concatenated into successively to seal to close and change, and evaporator 84 is vertically set between refrigeration interchanger air ports.
Refrigeration interchanger 8 also can adopt lithium bromide absorption chiller system, comprise that heater 801, the first cooler 802, the second cooler 803 and refrigerator 804(are shown in Figure 10), heater 801, the second cooler 803 and refrigerator 804 connect into the first closed loop, are the lithium bromide circulation; Heater 801, the first cooler 802 and refrigerator 804 connect into the second closed loop, are water circulation, and refrigerator 804 is vertically set between refrigeration interchanger 8 air ports, and circulating air is freezed.
Electronic detection and control circuit 17 is provided with CAN bus and the defeated people's (see figure 2) of direct current 12V.
Electronic detection and control circuit 17 connects two limit switch K1, K2, is separately positioned on two final positions of air door 1.
Fig. 5 is the control circuit figure of circulating fan, for reference.
Fig. 3, Fig. 4 are respectively outer circulation and two view of interior circulation of temperature controller of vehicle-mounted battery pack of the present invention, in conjunction with the following describes.
Special instruction:
1, the heat dissipation channel of Vehicular accumulator cell group design: the adjustment basic mode to Vehicular accumulator cell is to adopt draft type to adjust on-vehicle battery group temperature, this require to regulate air-flow can be evenly and large tracts of land pass through the surface of every Vehicular accumulator cell, this programme adopts structure as shown in Figure 1, first with the small shell with exposed hole, the Vehicular accumulator cell monomer is clamped, then by electric pressure and energy storage capacity requirement, be combined into corresponding Vehicular accumulator cell group.This mode can ensure that each Vehicular accumulator cell monomer has identical ventilation condition.Face mutually the through hole that can ventilate, dispel the heat formed after the small shell splicing, be defined as heat dissipation channel here.
2, Vehicular accumulator cell storehouse design: the outer case of the Volume design Vehicular accumulator cell group after peace photograph Vehicular accumulator cell composition group-Vehicular accumulator cell storehouse, offer air intake passage and air-out passage in the penetrating direction of the louvre along the Vehicular accumulator cell group at two ends, Vehicular accumulator cell storehouse.Install thermal insulation layer additional on the shell in Vehicular accumulator cell storehouse, get final product as pasted heat insulation foam commonly used in one deck automobile engine compartment in the outside in on-vehicle battery storehouse, as shown in Figure 2.
3, air air cleaner design: the air air cleaner adopts the standard net-filter assembly, by 8 times of air duct, joins net-filter assembly.If the sectional area of the air duct of air air cleaner is 100mm * 100mm, the area of standard net-filter assembly can not be less than 8 * 100mm * 100mm so.
4, temperature is adjusted the control module design: the major function device that temperature is adjusted in the control module function has: four of liquid heater, electric heater, circulating fan and refrigeration interchangers, and specific embodiments is as follows:
4.1, electric heater design: electric heater adopts the ceramic heat assembly of up-to-date model, electric heating device as shown in Figure 6, electric heater is for battery pack heat up is regulated, and the power of electric heater press the series connection total voltage upper limit that-every cubic metre/1KW of on-vehicle battery storehouse internal volume coupling, operating voltage press the Vehicular accumulator cell group and prepared.Join the protection temperature detect switch (TDS), with two of 85 ℃ of temperature detect switch (TDS)s of standard (safety device), access after series connection on the heating power supply loop of electric heater.During assembling, 85 ℃ of temperature detect switch (TDS)s are pressed against on the heat generating component of ceramic heater, as shown in Figure 7.The volume settings of electric heater is 40mm * 150mm * 150mm.
4.2, circulating fan design: circulating fan adopts standard fan, the arrangement platform as shown in Figure 2, along the moving direction of air-flow, at refrigeration interchanger rear end, electric heater front end.
Operating voltage has two kinds of DC12V and DC24V, and power arrangement should meet following condition:
4.2.1, with under the forced ventilation mode, the temperature of Vehicular accumulator cell group can not exceed and limit the quantity of.
4.2.2, under the electric heater condition of work, the temperature rise of the ceramic heat assembly in electric heater is no more than 50 ℃.
4.2.3, in this programme to the capacity relative on the dilly of 12V system less Vehicular accumulator cell assembly 80W blower fan, the larger Vehicular accumulator cell assembly 200W blower fan to the capacity relative on the oversize vehicle of 24V system.Above-mentioned power of fan proportioning is that the heat generation characteristic actual measurement of using by the best of lithium manganate battery is determined, other kind Vehicular accumulator cell assembly cover mode also should be surveyed definite.
4.2.4, the volume settings of circulating fan is 35mm * 150mm * 150mm.
4.3, liquid heater design: liquid heater adopts the little cisten mechanism of lesser circulation in automobile engine, i.e. hermetic copper circulation line, overcoat aluminum radiating ribs; The arrival end of circulation line is equipped with by-pass valve control, for turn-offing liquid flow or opening liquid flow path, as shown in Figure 8.
The volume settings of liquid heater is 45mm * 150mm * 150mm.
4.4, refrigeration interchanger design: the refrigeration interchanger is different from liquid heater, electric heater and three function elements of circulating fan, these three function elements can make independently function element, and the mechanical structure of refrigerating system is all totally enclosed loop structure, the refrigeration interchanger is a function element of refrigerating system, and this device can produce cryogenic effect and absorb heat.This programme is used respectively two kinds of refrigeration structures from the energy-saving and environmental protection angle, for pure electric vehicle and motor vehicle driven by mixed power.
4.4.1, the design of compression contraction air-cooled structure: for pure electric vehicle, this programme adopts the compression refrigeration mode, and as shown in Figure 9: the operation principle of refrigeration structure is with electrically driven (operated) air compressor, lower boiling liquid (refrigerant) to be compressed in a container (condenser) and to form high pressure conditions; Enter pressure-reducing valve after aeration-cooling; After subtracting, pressure-reducing valve enters in second low pressure vessel, after refrigerant enters in low pressure vessel by high-pressure liquid, evaporation forms the gaseous state absorbing and cooling temperature, container with cooling effect is referred to as evaporator in compression refrigerating system, and the effect that this reason is adjusted in control module in temperature by it is defined as the refrigeration interchanger; The refrigerant that flashes to gaseous state starts next circulation after returning to compressor pressurizes.
The refrigeration interchanger, volume settings be 30mm * 150mm * 150mm.
4.4.2, the absorption system structural design: for motor vehicle driven by mixed power, this programme utilizes the remaining temperature of engine, by the absorption refrigeration mode, to the Vehicular accumulator cell group, lowers the temperature.Absorption system is utilize lithium bromide water-soluble by force, and accompanied by intense hypothermic response characteristic produces refrigeration effect; Utilize the separating at high temperature characteristic of lithium bromide water solution, by mode of heating, lithium bromide is separated from lithium bromide water solution, lithium bromide just starts gasification on the limit of the temperature more than 5 ℃, and while to lithium bromide water solution, being heated to 75 ℃, lithium bromide just can sucking-off fully from lithium bromide water solution.Lithium bromide gas to sucking-off is lowered the temperature (passing through cooler), the pure water cooling (passing through cooler) to having separated, and two kinds of materials after cooling are mixed again in refrigerator, produces refrigeration effect.As shown in figure 10, utilize the waste heat of the engine on motor vehicle driven by mixed power to heat to the heater in absorption system (lithium bromide and separator), the lithium bromide that heating is separated and water produce refrigeration effect through enter respectively the refrigeration interchanger after the cooler cooling, the lithium bromide water solution formed adds thermal release in heater return, enters circulation next time.The refrigeration interchanger of absorption system is identical with the refrigeration interchanger volume of compression-type refrigerating system, and volume settings is 30mm * 150mm * 150mm.
Aforesaid liquid heater, electric heater, circulating fan and four function elements of refrigeration interchanger are concentrated and are encapsulated in a heat insulation casing, are provided with air inlet duct and exhaust passage, and ventilation is sequentially refrigeration interchanger-circulating fan-electric heater-liquid heater.As shown in Figure 2.
5, air channel switch design:
5.1, the air channel switch is for switching the control actuator of inner cycle channel and outer circulation passage, consisting of an air door, when air door, during in sealing inner cycle channel state, the outer circulation passage is open-minded, as shown in Figure 4; When air door, when sealing the outer circulation channel status, inner cycle channel is opened as shown in Figure 5.
5.2, the air door switching step motor control with clutch and reducer structure, this motor drives steadily, reliable, can not cause because control system is malfunctioning motor to damage.Motor-drive circuit as shown in Figure 3.
5.3, the air door state of air channel switch controlled by limit switch, when air door, during in sealing inner cycle channel state, state confirmation K switch 1 is triggered.As shown in Figure 6, K1 is the confirmation switch of sealing inner cycle channel, and now the draft type of Vehicular accumulator cell controller is under the outer circulation pattern; Under this state, 4 of K1 normally-closed contacts are simultaneously severed, and following limitation function is arranged:
5.3.1, the condition of work of turn-offing the stepping motor of air channel switch.
5.3.2, turn-off the condition of work of refrigerating system.
5.3.3, the condition of work of turn-offing electric heating system.
5.3.4, turn-off the condition of work that liquid adds the device system.
5.4, the air door state of air channel switch controlled by limit switch, when air door during in sealing outer circulation channel status, state confirmation is opened K2 and is closed and be triggered, under this state, 1 of K2 normally-closed contact and 3 normally open contacts are switched simultaneously, as shown in Figure 6.
Following limitation function is arranged:
5.4.1, the condition of work of turn-offing the stepping motor of air channel switch.
5.4.2, the condition of work of refrigerating system is provided, when ambient temperature, during higher than 35 ℃, refrigerating system can start, and turn-offs the condition of work of heater simultaneously.
5.4.3, the condition of work of electric heating system is provided, when ambient temperature, during lower than 5 ℃, heating system can start, and turn-offs the condition of work of heating/refrigerating system simultaneously.(on pure electric vehicle, using)
5.4.4, the condition of work of liquid-heating system is provided, when ambient temperature, during lower than 5 ℃, heating system can start, and turn-offs the condition of work of heating/refrigerating system simultaneously.(on hybrid electric vehicle, using)
6, interior circulation air path design: interior circulation air path section is long-pending should be long-pending identical with the outer circulating air duct section, between air cleaner and air inlet duct Ji Hui road, with three-port structure, directly be connected, exhaust passage, temperature are adjusted between control module and muffler and are connected by the air channel switch.The pipeline of interior circulation air path adopts corrugated hose to get final product.
7, design of muffler: muffler is mainly used for eliminating the noise of circulating fan, extend the appearance body that 100mm forms an expansion after pressing the long-pending quadruplication of section of air duct, add a thick sponge of 20mm and get final product within holding body, the entrance of muffler is identical with outlet.
8, electronic detection and control circuit design:
As shown in Figure 6, battery detection control circuit is comprised of power supply, CAN communication interface circuit, temperature sensing circuit, state control circuit, actuator.
8.1, this programme has two kinds of DC12C and DC24V for the operating voltage of general Vehicular illumination system, is designed with two kinds of power supply input ports.
8.2, this programme adopt the communications protocol of standard CAN 2.0B netted between communication, be mainly used in reading the detected cell temperature parameter of the battery manager of standard configuration.
8.3, we for the temperature detection control mode, have:
8.3.1, the temperature control point built for pass of this programme, utilize temperature control switch to adopt the straight prosecutor formula of multiple spot to be controlled.
8.3.1.1, ambient temperature upper limit monitoring adopts a plurality of 35 ℃ of temp control switch parallel waies to be controlled.
8.3.1.2, ambient temperature lower limit monitoring adopts a plurality of 5 ℃ of temp control switch parallel waies to be controlled.
8.3.1.3, this programme detects and is furnished with straight testing temperature control point for the monomer temperature state of on-vehicle battery group, with a plurality of 40 ℃ of temp control switchs, be arranged on the Vehicular accumulator cell group, the temperature upper limit of battery pack is controlled, when the temp control switch at place, any point starts, circulating fan work, when ambient temperature surpasses 35 ℃, refrigerating system is also worked.
8.3.1.4, this programme detects and is furnished with straight testing temperature control point for the monomer temperature state of on-vehicle battery group, with a plurality of 5 ℃ of temp control switchs, be arranged on the Vehicular accumulator cell group, the lowest temperature of battery pack is controlled, when the temp control switch at place, any point starts, circulating fan work, heater work.
8.3.1.5, this programme adopts 2 85 ℃ of temp control switchs to control for electric heating system, surpasses while limiting the quantity of, and turn-offs the heating power supply loop.
8.3.1.6, this programme adopts 2 95 ℃ of temp control switchs to control for liquid-heating system, surpasses while limiting the quantity of the closing liquid control valve.
8.3.1.7, this programme controls for the inlet temperature of the interior recurrent state in on-vehicle battery storehouse, adopts 50 ℃ of temp control switchs to control, and surpasses while limiting the quantity of, and closes heater.
8.3.1.8, this programme controls for the inlet temperature of the outer circulation state in on-vehicle battery storehouse, adopts 40 ℃ of temp control switchs to control, and surpasses while limiting the quantity of, and automatically shears towards the refrigeration cool-down pattern of interior circulation.
8.3.2, the temperature parameter that detects for the battery manager of Vehicular accumulator cell assembly cover of this programme, adopt the mode that reads the battery manager measurement parameter.
8.4, the adjustment control program of this programme:
8.4.1, when ambient temperature during at 15 ℃ to 35 ℃, the automatic shear of the air channel switch air channel of temperature controller of vehicle-mounted battery pack is to the outer circulation pattern.
8.4.2, when ambient temperature higher than 35 ℃ or during lower than 5 ℃, the automatic shear of the air channel switch air channel of temperature controller of vehicle-mounted battery pack is to interior cyclic module.
8.4.3, when ambient temperature higher than 15 ℃-during lower than 35 ℃, and the temperature of Vehicular accumulator cell group is while surpassing 40 ℃, circulating fan starts, temperature controller of vehicle-mounted battery pack enters force ventilated cooler pattern and lowers the temperature to the Vehicular accumulator cell group.When dropping to 35 ℃, the temperature of Vehicular accumulator cell group stops.
8.4.3, when ambient temperature during higher than 35 ℃, the automatic shear of air channel switch air channel is to interior cyclic module.When the temperature of Vehicular accumulator cell group surpasses 40 ℃, circulating fan starts, and temperature controller of vehicle-mounted battery pack enters the refrigeration cool-down pattern and lowers the temperature to the Vehicular accumulator cell group; When dropping to 35 ℃, the temperature of Vehicular accumulator cell group stops.
8.4.4, when ambient temperature during lower than 5 ℃, the automatic shear of air channel switch air channel is to interior cyclic module.When the temperature of Vehicular accumulator cell group was hanged down 5 ℃, circulating fan starts, and temperature controller of vehicle-mounted battery pack enters the heat temperature raising pattern and heats up to the Vehicular accumulator cell group.When rising to 15 ℃, the temperature of Vehicular accumulator cell group stops.(minute Electric heating and two kinds of modes of hydronic).
Claims (12)
1. a temperature controller of vehicle-mounted battery pack, carry out comprehensive Design in conjunction with the service condition of Vehicular accumulator cell and the dynamic structure of car load, comprise battery compartment, air channel, air cleaner and blower fan, it is characterized in that: described battery compartment shell is provided with heat-insulation layer, several cells are equipped with in inside, be provided with heat dissipation channel between every two batteries, the battery compartment two ends are provided with air inlet duct and exhaust passage, air inlet duct connects air cleaner, exhaust passage connects temperature and adjusts control module, temperature is adjusted control module and is externally connected with the air channel switch, the air channel switch is externally connected with muffler, be connected to air-return duct between air channel switch and air inlet duct, be provided with battery manager in battery compartment, at air inlet duct, difference set temperature transducer in exhaust passage and air channel switch, battery detector and temperature sensor are connected to the electronic detection and control circuit, the electronic detection and control circuit also connects the external temperature switch for detection of ambient temperature, the output of electronic detection and control circuit is connected respectively to the air channel switch and temperature is adjusted control module, be provided with air door in the switch of air channel, can between air-return duct and muffler two-way, switch, described temperature is adjusted control module and is comprised heat exchanger, electric heater, circulating fan, refrigeration interchanger, wherein: heat exchanger and electric heater are combined into bringing-up section, circulating fan and refrigeration interchanger are combined into refrigerating section, be provided with the second air channel switch between two ends, the branch road of the second air channel switch connects air-return duct, and the air door of the second air channel switch switches between bringing-up section and air-return duct.
2. temperature controller of vehicle-mounted battery pack according to claim 1, it is characterized in that: described external temperature switch comprises 35 ℃ of temperature switches, 5 ℃ of temperature switches, 40 ℃ of temperature switches and 15 ℃ of temperature switches.
3. temperature controller of vehicle-mounted battery pack according to claim 2, it is characterized in that: described electronic detection and control circuit is connected with several limit switches, and limit switch is arranged on two final positions of air door.
4. temperature controller of vehicle-mounted battery pack according to claim 3, it is characterized in that: described electric heater comprise ceramic wafer, stereotype for heating ,+85 ℃ of temperature limit switch, power input, ceramic wafer and stereotype are along the stacked setting of air gateway direction, every layer of ceramic wafer has several fritter ceramic heating plates, leave each other gap, + 85 ℃ of temperature limit switch are at least established one, and power input connects ceramic wafer by+85 ℃ of temperature limit switch.
5. temperature controller of vehicle-mounted battery pack according to claim 4, it is characterized in that: described heat exchanger comprises fluid pipeline, radiating fin, Liquid valve, liquid outlet, radiating fin is along the stacked setting of air ports direction, fluid pipeline is vertically installed in radiating fin, front end is provided with Liquid valve, rear end is provided with liquid outlet, and Liquid valve and liquid outlet be the connecting automobile engine cooling system respectively.
6. temperature controller of vehicle-mounted battery pack according to claim 5, it is characterized in that: described refrigeration interchanger comprises compressor, condenser, pressure-reducing valve, evaporator, compressor, condenser, pressure-reducing valve and evaporator are concatenated into the sealing closed loop successively, and evaporator is vertically set between refrigeration interchanger air ports.
7. temperature controller of vehicle-mounted battery pack according to claim 4, it is characterized in that: described refrigeration interchanger comprises heater, the first cooler, the second cooler (803), refrigerator (804), heater, the second cooler and refrigerator connect into the first closed loop, heater, the first cooler and refrigerator connect into the second closed loop, and the first cooler is vertically set between refrigeration interchanger air ports.
8. according to the described temperature controller of vehicle-mounted battery pack of claim 6 or 7, it is characterized in that: described electronic detection and control circuit is provided with CAN bus and direct current 12V input.
9. temperature controller of vehicle-mounted battery pack according to claim 8, it is characterized in that: described temperature controller of vehicle-mounted battery pack is as follows to the temperature-controlled process of batteries:
1) detect external temperature and battery temperature;
2) according to the temperature range requirement of battery pack, the temperature range that wherein the best of lithium manganate battery is used is 15 ℃-35 ℃,-40 ℃ in conjunction with the natural environment variations in temperature are arrived+45 ℃ of scopes, ambient temperature lower than 35 ℃ of conditions under, temperature in the Vehicular accumulator cell group rises to 40 ℃, start circulating fan, the air channel switch is in muffler and exhaust passage connection status, adopts the forced ventilation mode to lower the temperature to the Vehicular accumulator cell group; When dropping in 15 ℃ of-35 ℃ of scopes of limiting the quantity of, the bulk temperature of on-vehicle battery group stops cooling process;
3) when ambient temperature during higher than 35 ℃, the Vehicular accumulator cell group be need to lower the temperature the time, circulating fan and refrigeration interchanger enter operating state, the second air channel switch is in exhaust passage and air-return duct connection status, recurrent state in forming; Refrigeration interchanger output cryogenic energy cooling-air, the cooling state of battery compartment in refrigeration modes stops cooling process when the bulk temperature of on-vehicle battery group drops in the scope of limiting the quantity of;
4) in ambient temperature during lower than 5 ℃ of conditions, Vehicular accumulator cell group temperature is lower than 15 ℃, start heating system and circulation motor, the air channel switch is in air outlet and air-return duct connection status, recurrent state in forming, enter electric heater from the gas of sucking-off in the Vehicular accumulator cell storehouse after the circulating fan pressurization, through the electric heater heating, become thermal current, thermal current is heated to the Vehicular accumulator cell group in interior circulation air path returns to the Vehicular accumulator cell storehouse; When rising in 15 ℃ of-35 ℃ of scopes of limiting the quantity of, the bulk temperature of on-vehicle battery group stops heating schedule; Pure electric vehicle adopts Electric heating, and mixed motor-car adopts the heating liquid mode.
10. temperature controller of vehicle-mounted battery pack according to claim 9, it is characterized in that: be provided with the startup auto-lock function in described temperature-controlled process, the temperature controller of vehicle-mounted battery pack condition of work is that the function detected on vehicle is controlled when power supply is inputted and could be started, and dilly is that direct current 12V, oversize vehicle are direct current 24V.
11. temperature controller of vehicle-mounted battery pack according to claim 10, it is characterized in that: be provided with multiple spot in described temperature-controlled process and directly survey mode, plural 35 ℃ of temperature detect switch (TDS)s are monitored for the ambient temperature lower limit for the monitoring of the ambient temperature upper limit, plural 5 ℃ of temperature detect switch (TDS)s.
12. temperature controller of vehicle-mounted battery pack according to claim 11 is characterized in that: be provided with interlock function in described temperature-controlled process as follows:
When 1) ambient temperature outside the Vehicular accumulator cell storehouse is higher than 35 ℃, refrigeration interchanger place enters operating state, cuts off the interlocking condition of heater work simultaneously;
When 2) ambient temperature outside the Vehicular accumulator cell storehouse is lower than 5 ℃, heater enters operating state, cuts off the interlocking condition of refrigeration interchanger work simultaneously;
When 3) ambient temperature outside the Vehicular accumulator cell storehouse is within 15 ℃-35 ℃ of scopes of limiting the quantity of, the condition of work of heater and refrigeration interchanger all is cut off.
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| CN2011100546430A CN102148413B (en) | 2011-03-08 | 2011-03-08 | Temperature controller of vehicle-mounted battery pack |
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| CN2011100546430A CN102148413B (en) | 2011-03-08 | 2011-03-08 | Temperature controller of vehicle-mounted battery pack |
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